Complete refactoring of messaging module. From now messages are saved only once and send afterwards via a the 'send_emails'-rake-task.

app/helpers/messages_helper.rb

@@ -0,0 +1,17 @@
+module MessagesHelper
+  def groups_for_select
+    groups = [[" -- Arbeitsgruppen -- ", ""]]
+    groups += Workgroup.find(:all, :order => 'name', :include => :memberships).reject{ |g| g.memberships.empty? }.collect do |g|
+      [g.name, g.id]
+    end
+    groups += [[" -- Bestellgruppen -- ", ""]]
+    groups += Ordergroup.find(:all, :order => 'name', :include => :memberships).reject{ |g| g.memberships.empty? }.collect do |g|
+      [g.name, g.id]
+    end
+    groups
+  end
+
+  def format_subject(message)
+    truncate "<b>#{link_to(h(message.subject), message)}</b> <span style='color:grey'>#{h(message.body)}</span>", :length => 200
+  end
+end